package com.easy.module.log.aspectj;

import com.alibaba.fastjson2.JSON;
import com.easy.framework.common.enums.CommonStatus;
import com.easy.framework.common.utils.Func;
import com.easy.framework.common.utils.ServletUtils;
import com.easy.framework.common.utils.ip.IpUtils;
import com.easy.framework.security.model.LoginUser;
import com.easy.framework.security.utils.SecurityUtils;
import com.easy.framework.web.filter.PropertyPreExcludeFilter;
import com.easy.module.log.annotation.Log;
import com.easy.module.log.entity.SysOperLog;
import com.easy.module.log.service.ISysOperLogService;
import eu.bitwalker.useragentutils.UserAgent;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.NamedThreadLocal;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.validation.BindingResult;
import org.springframework.web.multipart.MultipartFile;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.CompletableFuture;

/**
 * 操作日志记录处理
 *
 * @author Easy
 */
@Aspect
@Component
public class LogAspect {
    private static final Logger logger = LoggerFactory.getLogger(LogAspect.class);

    /**
     * 排除敏感属性字段
     */
    public static final String[] EXCLUDE_PROPERTIES = {"password", "oldPassword", "newPassword", "confirmPassword"};

    /**
     * 计算操作消耗时间
     */
    private static final ThreadLocal<Long> TIME_THREADLOCAL = new NamedThreadLocal<Long>("Cost Time");

    /**
     * 处理请求前执行
     */
    @Before(value = "@annotation(log)")
    public void boBefore(JoinPoint joinPoint, Log log) {
        TIME_THREADLOCAL.set(System.currentTimeMillis());
    }

    /**
     * 处理完请求后执行
     *
     * @param joinPoint 切点
     */
    @AfterReturning(pointcut = "@annotation(log)", returning = "jsonResult")
    public void doAfterReturning(JoinPoint joinPoint, Log log, Object jsonResult) {
        handleLog(joinPoint, log, null, jsonResult);
    }

    /**
     * 拦截异常操作
     *
     * @param joinPoint 切点
     * @param e         异常
     */
    @AfterThrowing(value = "@annotation(log)", throwing = "e")
    public void doAfterThrowing(JoinPoint joinPoint, Log log, Exception e) {
        handleLog(joinPoint, log, e, null);
    }

    @Autowired
    private ISysOperLogService sysOperLogService;

    protected void handleLog(final JoinPoint joinPoint, Log log, final Exception e, Object jsonResult) {
        try {
            // 获取当前的用户
            LoginUser user = SecurityUtils.getUser();

            SysOperLog model = new SysOperLog();
            model.setModule(log.title());
            model.setType(log.type().getValue());
            model.setStatus(CommonStatus.enabled.getValue());
            // 请求的地址
            UserAgent userAgent = UserAgent.parseUserAgentString(ServletUtils.getRequest().getHeader("User-Agent"));
            model.setBrowser(userAgent.getBrowser().getName());
            model.setOs(userAgent.getOperatingSystem().getName());
            model.setDevice(userAgent.getOperatingSystem().getDeviceType().toString());
            model.setIp(IpUtils.getIpAddr());
            model.setUrl(StringUtils.substring(ServletUtils.getRequest().getRequestURI(), 0, 255));
            if (Func.isNotEmpty(user)) {
                model.setUsername(user.getUsername());
                model.setUserId(user.getUserId());
            }
            if (e != null) {
                model.setStatus(4);
                model.setError(StringUtils.substring(e.getMessage(), 0, 2000));
            }
            // 设置方法名称
            String className = joinPoint.getTarget().getClass().getName();
            String methodName = joinPoint.getSignature().getName();
            model.setDescription(log.type().getName() + " " + log.title() + ":" + className + "$" + methodName + "()");
            // 设置请求方式
            model.setMethod(ServletUtils.getRequest().getMethod());

            if (log.saveRequestData()) {
                setRequestValue(joinPoint, model, log.excludeParamNames());
            }
            if (log.saveResponseData() && !Func.isNull(jsonResult)) {
                model.setResult(StringUtils.substring(JSON.toJSONString(jsonResult), 0, 2000));
            }

            // 设置消耗时间
            model.setTime(System.currentTimeMillis() - TIME_THREADLOCAL.get());
            sysOperLogService.addAsync(model);
        } catch (Exception exp) {
            logger.error(exp.getMessage());
            exp.printStackTrace();
        } finally {
            TIME_THREADLOCAL.remove();
        }
    }

    /**
     * 获取请求的参数，放到log中
     *
     * @param model 操作日志
     * @throws Exception 异常
     */
    private void setRequestValue(JoinPoint joinPoint, SysOperLog model, String[] excludeParamNames) throws Exception {
        Map<?, ?> paramsMap = ServletUtils.getParamMap(ServletUtils.getRequest());
        String requestMethod = model.getMethod();
        if (Func.isEmpty(paramsMap)
                && (HttpMethod.PUT.name().equals(requestMethod) || HttpMethod.POST.name().equals(requestMethod))) {
            String params = argsArrayToString(joinPoint.getArgs(), excludeParamNames);
            model.setPayload(StringUtils.substring(params, 0, 2000));
        } else {
            model.setPayload(StringUtils.substring(JSON.toJSONString(paramsMap, excludePropertyPreFilter(excludeParamNames)), 0, 2000));
        }
    }

    /**
     * 参数拼装
     */
    private String argsArrayToString(Object[] paramsArray, String[] excludeParamNames) {
        String params = "";
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object o : paramsArray) {
                if (!Func.isNull(o) && !isFilterObject(o)) {
                    try {
                        String jsonObj = JSON.toJSONString(o, excludePropertyPreFilter(excludeParamNames));
                        params += jsonObj.toString() + " ";
                    } catch (Exception e) {
                    }
                }
            }
        }
        return params.trim();
    }

    /**
     * 忽略敏感属性
     */
    public PropertyPreExcludeFilter excludePropertyPreFilter(String[] excludeParamNames) {
        return new PropertyPreExcludeFilter().addExcludes(ArrayUtils.addAll(EXCLUDE_PROPERTIES, excludeParamNames));
    }

    /**
     * 判断是否需要过滤的对象。
     *
     * @param o 对象信息。
     * @return 如果是需要过滤的对象，则返回true；否则返回false。
     */
    @SuppressWarnings("rawtypes")
    public boolean isFilterObject(final Object o) {
        Class<?> clazz = o.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) o;
            for (Object value : collection) {
                return value instanceof MultipartFile;
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) o;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                return entry.getValue() instanceof MultipartFile;
            }
        }
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
                || o instanceof BindingResult;
    }
}
